Teemo vs Locke

Save Blinding Dart (Q) for the champion who relies on autos, right as they start a trade: blinded, they miss their autos.

Stand still for a moment to turn invisible with Guerrilla Warfare (passive), then strike first: when you leave invisibility, you gain attack speed.

Save the Move Quick (W) sprint to escape a gank: you have no dash, and its bonus isn't lost when you get hit.

Place Noxious Trap (R) on busy paths: jungle entrances, around dragon and Baron, river brushes. Stealthed, it slows and reveals the enemy who steps on it.

Back instead of staying in lane at low health: Silver Stake (passive) adds damage to his autos that grows with your missing health.

Trade after Ashen Pursuit (E): it's his only instant movement, and its 10-second cooldown only resets if he gets a takedown.

During Soul Ignition (W), only hit him if you can kill him: at the end, he heals back part of the last damage taken, yours included.

Marked by Purgatory (R), stay above its threshold: if you have a heal or a shield, use it, because he seals marked enemies who drop below it.

If the Purgatory (R) artifact lands, hold the area where it fell: by picking it up, Locke raises his execute threshold for each sealed champion, for the rest of the game.